<h3>Basic</h3>
<div class="msr">
  <nz-button-group>
    <button nz-button>Cancel</button>
    <button nz-button nzType="primary">Ok</button>
  </nz-button-group>
  <nz-button-group>
    <button nz-button [disabled]="true">L</button>
    <button nz-button [disabled]="true">M</button>
    <button nz-button [disabled]="true">R</button>
  </nz-button-group>
  <nz-button-group>
    <button nz-button [disabled]="true">L</button>
    <button nz-button [disabled]="true">M</button>
    <button nz-button>M</button>
    <button nz-button [disabled]="true">R</button>
  </nz-button-group>
</div>

<h3 class="mst">With Icon</h3>
<div class="msr">
  <nz-button-group>
    <button nz-button nzType="primary">
      <span nz-icon nzType="left"></span>
      Go back
    </button>
    <button nz-button nzType="primary">
      Go forward
      <span nz-icon nzType="right"></span>
    </button>
  </nz-button-group>
</div>
